Baxi Mainfour 24-24F - 3. Commissioning the boiler

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71.07144.01 - EN
INSTRUCTIONS FOR USERS
To light the boiler correctly, proceed as follows:
1) power the boiler
2) open the gas tap;
3) press the button ( ) and switch the boiler to Summer ( ), Winter ( ) or heating only ( );
4) press the heating circuit ( ) and domestic hot water circuit ( ) temperature adjustment buttons (+/-) in order to ignite
the main burner.
When the boiler is lit, the symbol ( ) will appear on the display.
In the Summer position ( ) the main burner will only ignite if a DHW tap is turned on.
Warning:
During initial ignition, the burner may not ignite (causing the boiler to shut down) until any air in the gas pipes is vented.
In this case, repeat the ignition procedure until gas reaches the burner. Press button ( ), for at least 2 seconds.
3. COMMISSIONING THE BOILER
Operation in the heating mode
Flame present (burner on)
No ame (ignition failure)
Operation in the DHW mode
Generic fault
No water (Low system pressure)
Numerical signal (Temperature, fault code, etc.)
RESET
BUTTON KEY
Figure 1
SYMBOL KEY
On/Off/Summer/Winter
(+/-) CH Temperature Adjust ( Heating)
(+/-) DHW Temperature Adjust ( Hot Water)
Reset
Information
0905_2801
4. ADJUSTING AMBIENT TEMPERATURE AND DHW TEMPERATURE
The system must be equipped with an ambient thermostat for controlling the room temperature.
Adjust the ambient temperature ( ) and the DHW temperature ( ) by pressing the respective +/- buttons (gure 1).
The ignition of the burner is shown on the display with the symbol ( ) as described in section 3.1.
HEATING
While the boiler is operating in heating mode, the display (gure 1) shows the ashing symbol ( ) and the heating de-
livery temperature (°C).
DOMESTIC HOT WATER
While the boiler is operating in DHW mode, the display (gure 1) shows the ashing symbol ( ) and the DHW output
temperature (°C).